I suggest that you and anybody else interested in these Girdle Stones read John and Morton Edgar's highly detailed descriptions of them.
'The Great Pyramid Passages and Chambers. Vol 1. Letter XVII. The First Ascending Passage, the Girdles and Symmetric Masonry. Page 281-285. 1923 Edition.
I believe that PDFs of the Edgar's work are on the Internet.
p.s. it's all grist to the mill